we all can have a small affect.
I regularly pass out the BJ21 "blackjack game to avoid" basic strategy cards to friends and people I meet at the low limit blackjack games.
I refuse to play poker at any table with less than seven active players. In these cases, I stay in my seat and point out the house is already taking $100 to $200 an hour off the table with the rake and bad beat drop. And that professional poker players think we are idots at the lower limit poker games for playing a game in which the house takes such a high percentage of the winnings. Usually this has some affect. Either the rake is lowered or the floor immediately starts trying to recruit new players to fill the table. If the floor does nothing, about half the time the table quits playing.
If I run into a friend at the roulette table or if anyone asks me about roulette. I tell them I would like to play and used to, but since the casino double the odds against us by putting in the double zero tables, I would feel like an idiot playing now, but I still ask the roulette floor man where the single zero tables are.
Also, we may have some hope due to a different issue. The indian casinos continue to expand nation wide. Maybe competition will result in better games being offered. I have witness the removal of continous shuffle machines at a casino, due to a new casino opening up down the road. They also added surrender as an option to the blackgames. And they increased the amount of comps they were issuing as an attempt to keep their customer's from going to the new casino.
We will never have the success that australia did, but we can have a small impact on the casinos bottom line, as well as, letting the casino know some customers aren't ignorant.